Switch



C. F. CUNO.

' swlTicHL APPLICATION- FILED FEB. 12,1"920 I 1,378,660, I Patented May17, 1921.

CHARLES E. CUNO, OF MERIDEN', CONNECTICUT.

To all w ham it may concern:

Beit known that I, CHARLES F. CUNopa citizen of the United States ofAmericafre siding at Meriden, Connecticut, have invent-11' ed a new anduseful Switch,- of which the following is a-specification.

automobile self-starters, so-calledf The object of my invention-is topiQVide. a simple construction whichwill per it, the switches, to beeconomically and rape idly produced, the simplicity cheapneSs of thestructure in no way sacrificing the efl'ectiveness of the'same as aswitch mechanism. v

In the drawings: j v v Figure 1 is a plan view of'a portion of theswitch mechanism.

Fig. 2 is a section on thei-line-2-2 of Fi 1. v *ig. 3 is a sideelevation. Fig. 4 is a sectional view.

1 represents the main portion of the switch casing which constitutes a.housing. 2 is a flange around the edge of the housing 1. 3 is a cap orcover plate. These parts may be struck up from sheet metal. 4: is asheet metal channeled member which is arranged a'mini num of expense. t

to rest in the bottom of the housing. 1 and which extends diametricallyacross. the centei'gy 5 represents a piece of ins'ulation'in.

the form of a channel arranged to rest snugly within the channel 1. 6 isa second piece of insulation which is channeled in form and arranged torest inthe bottom of the channeled insulation 5. 7-7 are terminalpieces, the heads of which are arranged to rest in the bottom of thechanneled insulation 6 whilethe shanks pass through the channeledinsulation 5, the metal channel. 4

v and the housing 1, the shanks of each of said terminal pieces beinginsulated from the metallic channel'4 and the housingl by suitableinsulating pieces. 7" represents an insulating washer. '8 represents anut threaded on to the shank of. each insulat-. ing piece to hold theseveral parts firmly assembled in operative position. 9 represents atube mounted on the cover plate 3. 10 I is a cap slidably mountedon theouter end of the tube 9. 11 is a switch bladewhich may be of laminatedform, the same being mounted upon butinsulated from the lowerSpecification 0t Letters Batent.

. sw ircir.

Patented May 17, 1921'.

Application filed February: 12, 1920. Serial at. 358,042.

end of a plunger 12. The upper end of the plunger 12 is connected withthe 'cap 10 and a suitable spring within the tube 9 .serves to cause theplunger 12 to stand in a retra cted"'position to hold the switch blade11 inthe position shown in Fig. 2

and normally out of contact with the terininal pieces? The switch bladestandswithin the channel'formed by the insulation 5 '1and isheld therebyin proper position to engage. the terminal pieces. 7-7 when the caplO isdepressed, the 'innerside walls of the channeled insulation 5 a'ctingtoguide said I switch blade. Suitable electric connections may beinadewith the shanks of the respective terminal pieces"7-.7 which act asbinding posts. When pressure is applied to the'cap 10, the, switch bladeis forced downwardly-so as toactas an electric bridge or, connectionbetweenkj the two terminal pieces 7 j.7 "andeclo'se'fthe circuit. .Whenpressure onJlthe pai-t 10 is released, the

' spring withint'hes'leeire 9 retracts the cap 10 and e switch blfld-soas to open the ircuit. s rom the foregoing -will be seen that anexceedingly; simple and yet e'fir'ectivefiswitch constructionisafforded, most of the parts of which may be formed from stamp.- ingsand hence'may be rapidly produced at WhatI claim is:

, 1.. In aiswitch of the character described,

. a- -housing, "a metallic channeled piece rest- 9.0

ing inthe bottom thereof, a channeled piece of insulating materialresting in said metallic channel and-supportedthereby andproi ingfallof. said parts assembled, 'a switch blade located in the channeledinsulating .through said parts butinsulat dath with means on each ofsaid shanks f r h epiece [and guided thereby and arranged to."electrically bridge thesaid terminals when moved into'contact therewith,and means for.

carrying said blade and for'moving the same into andout of contact withsaid terminal pieces. 1

e 2. In anelectric switch, a housing, a meta-llic channeled pie'celocated therein, a chan- I neled piece of insulating material resting inthe first mentioned channeled piece and supported thereby, two terminalpieces resting through the housing and insulated there-"- in the channelpiece of insulating material, with means-for furnishing electricconnection with said terminal pieces from outside said housing, a bladeswitch arranged longitudinally in the channeled piece'of'insulatingmaterial and arranged to connect the two terminal pieces, a cap forthehousing and an operating means carried by the cap and associated withsaid blade switch. for operating the same.

3. In an electric switch, a housing, a 'channel of insulating materialsecured therein, a plurality of terminal pieces located in said channel,a blade switch positioned longitudinally between the side walls of saidchannel and above said terminal pieces, and means for moving said bladeinto and out of contact with said terminals to electrically connect anddisconnect the same, and a metallic channel member located in saidhousing'and supporting and reinforcing the side walls of the insulatingchannel.

4. In a switch of the character described, a housing, a strip ofinsulating'material extending transversely across the housing adj acentto the base of the same and having an outstanding flange at one edge, ametallic strip locatedbetween said insulating strip and the bottom ofsaid housing, one edge of said metallic strip being shaped to supportsaid flange, a'plurality of spaced terminal pieces adjacent the oppositeends of said strips, each of said terminal pieces having a shankextending through said parts and from, a switch blade extending oversaid terminal pieces and located adjacent said flange of the insulatingstrip whereby the latter will hold said blade in substantial alinementwith said terminals, and means for alongside of said contacts andserving to.

venting said spring-pressed member from means on said parts for'securingguide said springpressed contact member in its reciprocation in thehousing.

6. In a device of the character described, a channel-shaped member,spaced apart sta tionary contact members in said channelmembers in saidchannel-shaped member andadapted to contact with said stationary contactmembers, and a strip of insulating material supported in said channeland ex tending alongside of saidcontacts for pre contacting with saidchannel-shaped memher during its reciprocation.

7. In a device of the character described, a cover member having a rodreciprocable therethrough,la bridging contact member carried bysaid rod,a spring for urging said bridging contact member in one direction, a

channel-shaped member below said cover and in substantial alinement withsaid bridging contact member, opposed stationary contact members in saidchannel-shaped memher and having parts extending there through andinsulated from said channel member, and a strip of insulating materialmounted in said channel and serving to pre vent said bridging contactmember from contacting with said channel shaped member during thereciprocation of the bridging contact member.

8. In a device of the character described, a cover member having arodreciprocable therethrough, a bridging contact member carried by saidrod, a spring for urging said bridging contact. member in one'direction, a channel-shaped member below said cover and in substantial"alinement with said bridging contact member, opposed station-' arycontact members in said channel-shaped member and having parts extendingtherethrough, and a channel of insulating material supported in saidchannel-shaped member and serving to insulate said stationary contactmembers and said bridging contact member-from the channel-shaped memberduring the reciprocation of the bridging contact member.

CHARLES F. (Juno.

